Average annual temperature is 13.5 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -8.5 °C
Number of sunny days: 173 days
Number of rainy days: 185 days
Number of snow days: 7 days
Look at detailed online map of Summit
* Weather data for Summit United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 16.7 | 22.9 | 24.2 | 28.9 | 30.2 | 33.5 | 33.3 | 31.7 | 33.4 | 28.6 | 21.9 | 18.3 |
| Average daytime temperature (°C) | 9.1 | 12.9 | 12.7 | 19.8 | 22.9 | 27.2 | 29.8 | 28.1 | 25.9 | 19.8 | 13.1 | 10.1 |
| Average temperature (°C) | 4.4 | 6.1 | 6.4 | 12.8 | 16.5 | 20.8 | 24.1 | 22.7 | 20.0 | 14.4 | 7.3 | 5.4 |
| Average night temperature (°C) | 1.2 | 1.4 | 1.7 | 7.0 | 10.9 | 15.3 | 19.5 | 18.0 | 15.2 | 10.4 | 3.0 | 2.2 |
| Absolute minimum temperature (°C) | -5.7 | -8.5 | -7.2 | 1.1 | 3.0 | 10.2 | 15.6 | 13.0 | 10.5 | 3.1 | -6.1 | -4.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10.0 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.0 | 7.1 | 7.4 | 9.0 | 10.0 | 11.3 | 11.5 | 11.0 | 9.6 | 7.8 | 7.2 | 5.1 |
| Precipitation (mm) | 131 | 67 | 104 | 87 | 91 | 83 | 82 | 104 | 42 | 87 | 41 | 88 |
| Sunny days | 10 | 15 | 16 | 17 | 16 | 13 | 8 | 14 | 15 | 15 | 20 | 14 |
| Rainy days | 19 | 12 | 14 | 13 | 15 | 17 | 23 | 17 | 15 | 16 | 9 | 15 |
| Snow days | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at